CENTURY VIII. 375 



they are collected once within, the heat becometh 

 more violent and irritate ; and thereby expelleth 

 sweat. 



710. Cold sweats are, many times, mortal, and 

 near death: and always ill, and suspected: as in 

 great fears, hypochondriacal passions, &c. The cause 

 is, for that cold sweats come by a relaxation or for 

 saking of the spirits, whereby the moisture of the 

 body, which heat did keep firm in the parts, severeth 

 and issueth out. 



711. In those diseases which cannot be dis 

 charged by sweat, sweat is ill, and rather to be 

 stayed ; as in diseases of the lungs, and fluxes of the 

 belly : but in those diseases which are expelled by 

 sweat, it easeth and lighteneth ; as in agues, pesti 

 lences, &c. The cause is, for that sweat in the latter 

 sort is partly critical, and sendeth forth the matter 

 that offendeth ; but in the former, it either proceedeth 

 from the labour of the spirits, which sheweth them 

 oppressed ; or from motion of consent, when nature, 

 not able to expel the disease where it is seated 

 moveth to an expulsion indifferent over all the body. 



Experiment solitary touching the glow-worm. 



712. The nature of the glow-worm is hitherto 

 not well observed. Thus much we see ; that they 

 breed chiefly in the hottest months of summer ; and 

 that they breed not in champain, but in bushes 

 and hedges. Whereby it may be conceived, that the 

 spirit of them is very fine, and not to be refined but 

 by summer heats : and again, that by reason of the 



